Abstract
More and more attention has been paid to the development of renewable energy in the world. Microgrids with flexible regulation abilities provide an effective way to solve the problem of renewable energy connected to power grids. In this article, an optimization strategy of a microgrid participating in day-ahead market operations considering demand responses is proposed, where the uncertainties of distributed renewable energy generation, electrical load, and day-ahead market prices are taken into account. The results show that, when the microgrid implements the demand response, the operation cost of the microgrid decreases by 4.17%. Meanwhile, the demand response program can transfer the peak load of the high-price period to the low-price period, which reduces the peak valley difference of the load and stabilizes the load curve. Finally, a sensitivity analysis of three factors is carried out, finding that, with the increase of the demand response adjustable ratio or the maximum capacity of the electrical storage devices, the operation cost of the microgrid decreases, while, with the increase of the demand response cost, the operation cost of the microgrid increases and, finally, tends to the cost without the demand response. The sensitivity analysis reveals that the demand response cost has a reasonable pricing range to maximize the value of the demand response.
Highlights
The effective use and development of renewable energy has become an important part of the energy development strategy of all countries in the world [1]
The difference of costs in the three cases shows that the demand response program and the cost of the demand response will affect the optimal operation and, affect the operation cost of the microgrid
This shows that the cost of demand response has an impact the demand response will affect the optimal operation and, affect the operation cost of the on the operation of athe microgrid
Summary
The effective use and development of renewable energy has become an important part of the energy development strategy of all countries in the world [1]. According to the statistics released by the International Renewable Energy Agency (IRENA) in 2018, the global renewable energy generation accounts for one-third of the total generation [2]. In 2018, the newly installed capacity of renewable energy in the word was 171GW [3], the year-on-year growth rate was 7.9%, and two-thirds of the new power generation came from renewable energy [3]. After large-scale integration of renewable energy into the grid, it may bring new challenges to the safe and stable operation of the power system and lead to invalid investment, such as the problem of the abandonment of wind and photovoltaic power generation.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
